int ips_clear_adapter(ips_softc_t *sc)
{
ips_cmd_status_t *status;
status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_NOWAIT|M_ZERO);
if(!status)
return ENOMEM;
device_printf(sc->dev, "syncing config\n");
if(ips_get_free_cmd(sc, ips_send_config_sync_cmd, status,
IPS_NOWAIT_FLAG)){
free(status, M_IPSBUF);
device_printf(sc->dev, "ERROR: unable to get a command! can't sync cache!\n");
return 1;
}
if(COMMAND_ERROR(status)){
free(status, M_IPSBUF);
device_printf(sc->dev, "ERROR: cache sync command failed!\n");
return 1;
}
device_printf(sc->dev, "clearing error table\n");
if(ips_get_free_cmd(sc, ips_send_error_table_cmd, status,
IPS_NOWAIT_FLAG)){
free(status, M_IPSBUF);
device_printf(sc->dev, "ERROR: unable to get a command! can't sync cache!\n");
return 1;
}
if(COMMAND_ERROR(status)){
device_printf(sc->dev, "ERROR: etable command failed!\n");
free(status, M_IPSBUF);
return 1;
}
free(status, M_IPSBUF);
return 0;
}
int ips_clear_adapter(ips_softc_t *sc)
{
ips_command_t *command;
device_printf(sc->dev, "syncing config\n");
if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
device_printf(sc->dev, "ERROR: unable to get a command! can't sync cache!\n");
return 1;
}
ips_send_config_sync_cmd(command);
if(COMMAND_ERROR(command)){
device_printf(sc->dev, "ERROR: cache sync command failed!\n");
return 1;
}
device_printf(sc->dev, "clearing error table\n");
if(ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
device_printf(sc->dev, "ERROR: unable to get a command! can't sync cache!\n");
return 1;
}
ips_send_error_table_cmd(command);
if(COMMAND_ERROR(command)){
device_printf(sc->dev, "ERROR: etable command failed!\n");
return 1;
}
return 0;
}
static int ips_ioctl_cmd(ips_softc_t *sc, ips_ioctl_t *ioctl_cmd, ips_user_request *user_request)
{
ips_command_t *command;
int error = EINVAL;
if (bus_dma_tag_create( /* parent */ sc->adapter_dmatag,
/* alignment */ 1,
/* boundary */ 0,
/* lowaddr */ BUS_SPACE_MAXADDR_32BIT,
/* highaddr */ BUS_SPACE_MAXADDR,
/* filter */ NULL,
/* filterarg */ NULL,
/* maxsize */ ioctl_cmd->datasize,
/* numsegs */ 1,
/* maxsegsize*/ ioctl_cmd->datasize,
/* flags */ 0,
/* lockfunc */ NULL,
/* lockarg */ NULL,
&ioctl_cmd->dmatag) != 0) {
return ENOMEM;
}
if(bus_dmamem_alloc(ioctl_cmd->dmatag, &ioctl_cmd->data_buffer,
0, &ioctl_cmd->dmamap)){
error = ENOMEM;
goto exit;
}
if(copyin(user_request->data_buffer,ioctl_cmd->data_buffer,
ioctl_cmd->datasize))
goto exit;
ioctl_cmd->status.value = 0xffffffff;
mtx_lock(&sc->queue_mtx);
if((error = ips_get_free_cmd(sc, &command, 0)) > 0){
error = ENOMEM;
mtx_unlock(&sc->queue_mtx);
goto exit;
}
command->arg = ioctl_cmd;
ips_ioctl_start(command);
while( ioctl_cmd->status.value == 0xffffffff)
msleep(ioctl_cmd, &sc->queue_mtx, 0, "ips", hz/10);
if(COMMAND_ERROR(ioctl_cmd))
error = EIO;
else
error = 0;
mtx_unlock(&sc->queue_mtx);
if(copyout(ioctl_cmd->data_buffer, user_request->data_buffer,
ioctl_cmd->datasize))
error = EINVAL;
mtx_lock(&sc->queue_mtx);
ips_insert_free_cmd(sc, command);
mtx_unlock(&sc->queue_mtx);
exit: bus_dmamem_free(ioctl_cmd->dmatag, ioctl_cmd->data_buffer,
ioctl_cmd->dmamap);
bus_dma_tag_destroy(ioctl_cmd->dmatag);
return error;
}
static void
ipsd_dump_block_complete(ips_command_t *command)
{
if (COMMAND_ERROR(&command->status)) {
kprintf("ipsd_dump completion error= 0x%x\n",
command->status.value);
}
bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
}
static int
ipsd_dump(struct dev_dump_args *ap)
{
cdev_t dev = ap->a_head.a_dev;
ips_softc_t *sc;
ips_command_t *command;
ips_io_cmd *command_struct;
ipsdisk_softc_t *dsc;
off_t off;
uint8_t *va;
size_t len;
int error = 0;
dsc = dev->si_drv1;
if (dsc == NULL)
return (EINVAL);
sc = dsc->sc;
if (ips_get_free_cmd(sc, &command, 0) != 0) {
kprintf("ipsd: failed to get cmd for dump\n");
return (ENOMEM);
}
command->data_dmatag = sc->sg_dmatag;
command->callback = ipsd_dump_block_complete;
command_struct = (ips_io_cmd *)command->command_buffer;
command_struct->id = command->id;
command_struct->drivenum = sc->drives[dsc->disk_number].drivenum;
off = ap->a_offset;
va = ap->a_virtual;
size_t length = ap->a_length;
while (length > 0) {
len = length > IPS_MAX_IO_SIZE ? IPS_MAX_IO_SIZE : length;
command_struct->lba = off / IPS_BLKSIZE;
if (bus_dmamap_load(command->data_dmatag, command->data_dmamap,
va, len, ipsd_dump_map_sg, command, 0) != 0) {
error = EIO;
break;
}
if (COMMAND_ERROR(&command->status)) {
error = EIO;
break;
}
length -= len;
off += len;
va += len;
}
ips_insert_free_cmd(command->sc, command);
return(error);
}
int ips_ffdc_reset(ips_softc_t *sc)
{
ips_command_t *command;
if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
device_printf(sc->dev, "ERROR: unable to get a command! can't send ffdc reset!\n");
}
ips_send_ffdc_reset_cmd(command);
if(COMMAND_ERROR(command)){
device_printf(sc->dev, "ERROR: ffdc reset command failed!\n");
}
return 0;
}
int ips_flush_cache(ips_softc_t *sc)
{
ips_command_t *command;
device_printf(sc->dev, "flushing cache\n");
if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
device_printf(sc->dev, "ERROR: unable to get a command! can't flush cache!\n");
}
ips_send_flush_cache_cmd(command);
if(COMMAND_ERROR(command)){
device_printf(sc->dev, "ERROR: cache flush command failed!\n");
}
return 0;
}
int ips_get_drive_info(ips_softc_t *sc)
{
int error = 0;
ips_command_t *command;
if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG) > 0){
device_printf(sc->dev, "unable to get drive configuration\n");
return ENXIO;
}
ips_send_drive_info_cmd(command);
if(COMMAND_ERROR(command)){
error = ENXIO;
}
return error;
}
int ips_update_nvram(ips_softc_t *sc)
{
ips_command_t *command;
if (ips_get_free_cmd(sc, &command, IPS_STATIC_FLAG)){
device_printf(sc->dev, "ERROR: unable to get a command! can't update nvram\n");
return 1;
}
ips_read_nvram(command);
if(COMMAND_ERROR(command)){
device_printf(sc->dev, "ERROR: nvram update command failed!\n");
}
return 0;
}
int ips_ffdc_reset(ips_softc_t *sc)
{
ips_cmd_status_t *status;
status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_NOWAIT|M_ZERO);
if(!status)
return ENOMEM;
if(ips_get_free_cmd(sc, ips_send_ffdc_reset_cmd, status,
IPS_NOWAIT_FLAG)){
free(status, M_IPSBUF);
device_printf(sc->dev, "ERROR: unable to get a command! can't send ffdc reset!\n");
}
if(COMMAND_ERROR(status)){
device_printf(sc->dev, "ERROR: ffdc reset command failed!\n");
}
free(status, M_IPSBUF);
return 0;
}
/* Below is a pair of functions for making sure data is safely
* on disk by flushing the adapter's cache. */
static int ips_send_flush_cache_cmd(ips_command_t *command)
{
ips_softc_t *sc = command->sc;
ips_generic_cmd *command_struct;
PRINTF(10,"ips test: got a command, building flush command\n");
command->callback = ips_wakeup_callback;
command_struct = (ips_generic_cmd *)command->command_buffer;
command_struct->command = IPS_CACHE_FLUSH_CMD;
command_struct->id = command->id;
bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
BUS_DMASYNC_PREWRITE);
sc->ips_issue_cmd(command);
if (COMMAND_ERROR(command) == 0)
sema_wait(&sc->cmd_sema);
ips_insert_free_cmd(sc, command);
return 0;
}
int ips_update_nvram(ips_softc_t *sc)
{
ips_cmd_status_t *status;
status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_NOWAIT|M_ZERO);
if(!status)
return ENOMEM;
if(ips_get_free_cmd(sc, ips_read_nvram, status, IPS_NOWAIT_FLAG)){
free(status, M_IPSBUF);
device_printf(sc->dev, "ERROR: unable to get a command! can't update nvram\n");
return 1;
}
if(COMMAND_ERROR(status)){
device_printf(sc->dev, "ERROR: nvram update command failed!\n");
}
free(status, M_IPSBUF);
return 0;
}
int ips_get_drive_info(ips_softc_t *sc)
{
int error = 0;
ips_cmd_status_t *status;
status = malloc(sizeof(ips_cmd_status_t), M_IPSBUF, M_NOWAIT|M_ZERO);
if(!status)
return ENOMEM;
if(ips_get_free_cmd(sc, ips_send_drive_info_cmd, status,
IPS_NOWAIT_FLAG) > 0){
free(status, M_IPSBUF);
device_printf(sc->dev, "unable to get drive configuration\n");
return ENXIO;
}
if(COMMAND_ERROR(status)){
error = ENXIO;
}
free(status, M_IPSBUF);
return error;
}
/* Below are a series of functions for sending an IO request
* to the adapter. The flow order is: start, send, callback, finish.
* The caller must have already assembled an iorequest struct to hold
* the details of the IO request. */
static void ips_io_request_finish(ips_command_t *command)
{
struct buf *iobuf = command->arg;
if(ips_read_request(iobuf)) {
bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
BUS_DMASYNC_POSTREAD);
} else {
bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
BUS_DMASYNC_POSTWRITE);
}
bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
bus_dmamap_destroy(command->data_dmatag, command->data_dmamap);
if(COMMAND_ERROR(&command->status)){
iobuf->b_flags |=B_ERROR;
iobuf->b_error = EIO;
}
ips_insert_free_cmd(command->sc, command);
ipsd_finish(iobuf);
}
/* Below are a series of functions for sending an IO request
* to the adapter. The flow order is: start, send, callback, finish.
* The caller must have already assembled an iorequest struct to hold
* the details of the IO request. */
static void ips_io_request_finish(ips_command_t *command)
{
struct bio *iobuf = command->arg;
if(ips_read_request(iobuf)) {
bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
BUS_DMASYNC_POSTREAD);
} else {
bus_dmamap_sync(command->data_dmatag, command->data_dmamap,
BUS_DMASYNC_POSTWRITE);
}
bus_dmamap_unload(command->data_dmatag, command->data_dmamap);
if(COMMAND_ERROR(command)){
iobuf->bio_flags |=BIO_ERROR;
iobuf->bio_error = EIO;
printf("ips: io error, status= 0x%x\n", command->status.value);
}
ips_insert_free_cmd(command->sc, command);
ipsd_finish(iobuf);
}
static int ips_send_ffdc_reset_cmd(ips_command_t *command)
{
ips_softc_t *sc = command->sc;
ips_adapter_ffdc_cmd *command_struct;
PRINTF(10,"ips test: got a command, building ffdc reset command\n");
command->callback = ips_wakeup_callback;
command_struct = (ips_adapter_ffdc_cmd *)command->command_buffer;
command_struct->command = IPS_FFDC_CMD;
command_struct->id = command->id;
command_struct->reset_count = sc->ffdc_resetcount;
command_struct->reset_type = 0x0;
ips_ffdc_settime(command_struct, sc->ffdc_resettime.tv_sec);
bus_dmamap_sync(sc->command_dmatag, command->command_dmamap,
BUS_DMASYNC_PREWRITE);
sc->ips_issue_cmd(command);
if (COMMAND_ERROR(command) == 0)
sema_wait(&sc->cmd_sema);
ips_insert_free_cmd(sc, command);
return 0;
}